The cost to level and turf the field is calculated based on the area of the field and the rate per hectare. Given that the cost is Rs. 2624.40 and the rate is Rs. 160 per hectare, we first find the area in hectares:
Area = Total Cost / Rate per Hectare
Area = 2624.40 / 160 = 16.4025 hectares
Convert area from hectares to square meters:
1 hectare = 10,000 square meters
Total Area in square meters = 16.4025 × 10,000 = 164,025 square meters
For a square field, let the side of the field be s meters. Thus,
s² = 164,025
s = √164,025 ≈ 405 meters
To find the cost of the railing, calculate the perimeter of the square field:
Perimeter = 4 × s = 4 × 405 = 1620 meters
The cost of railing per meter is 25 paise, which is Rs. 0.25:
Cost of railing = 1620 × 0.25 = Rs. 405
The cost of surrounding the square field with a railing is Rs. 405.
Therefore, the correct answer is: Rs. 405